The Pentagon has taken over cost-cutting efforts for the F-35 program, which has been plagued by years of cost overruns, production delays and technical problems. The Defense Department rejected a cost-saving plan proposed by contractors including principal manufacturer Lockheed Martin as being too slow to produce substantial savings. Instead, it gave Lockheed a $60 million contract “to pursue further efficiency measures, with more oversight of how the money was spent,” The Wall Street Journal’s Doug Cameron reports. F-35 program leaders “say they want more of the cost-saving effort directed at smaller suppliers that haven’t been pressured enough.” The Pentagon plans to cut the price of the F-35A model used by the Air Force from a recent $94.6 million each to around $80 million by 2020. Overall, the price of developing the F-35 has climbed above $400 billion, with the total program cost now projected at $1.53 trillion. (Wall Street Journal, CNBC)

Goldman Sachs economists see the tax bill adding 0.3 percentage points to GDP growth in 2018 and 2019 while JP Morgan forecasts a similar gain of 0.3 percentage points next year and 0.2 percentage points the year after.

Goldman’s analysts add that federal spending, which is likely to grow more quickly next year than it has recently, will bring the total fiscal boost to around 0.6 percentage points for 2018 and 0.4 percentage points in 2019.

Both banks see deficits likely rising above $1 trillion, or about 5 percent of GDP, in 2019.

Politico’s Tim Alberta and Rachael Bade drop a blockbuster: “Despite several landmark legislative wins this year, and a better-than-expected relationship with President Donald Trump, Ryan has made it known to some of his closest confidants that this will be his final term as speaker. … He would like to serve through Election Day 2018 and retire ahead of the next Congress. This would give Ryan a final legislative year to chase his second white whale, entitlement reform, while using his unrivaled fundraising prowess to help protect the House majority—all with the benefit of averting an ugly internecine power struggle during election season.”

Speculation has been swirling that Ryan could step down once “he’s harpooned his personal white whale of tax reform,” as HuffPost put it.

The finance ministers of Europe’s five largest economies — Germany, France, the U.K., Italy and Spain — warned that the Republican tax plan could have “a major distortive impact” on international trade and may violate international treaties. "The inclusion of certain less conventional international tax provisions could contravene the U.S.'s double taxation treaties and may risk having a major distortive impact on international trade," the ministers wrote in a letter to Mnuchin.

Politico reports: “The White House is quietly preparing a sweeping executive order that would mandate a top-to-bottom review of the federal programs on which millions of poor Americans rely. And GOP lawmakers are in the early stages of crafting legislation that could make it more difficult to qualify for those programs. … The president is expected to sign the welfare executive order as soon as January, according to multiple administration officials, with an eye toward making changes to health care, food stamps, housing and veterans programs, not just traditional welfare payments.”